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PatchSiren cyber security CVE debrief

CVE-2025-6377 Rockwell Automation CVE debrief

A remote code execution vulnerability exists in Rockwell Automation Arena simulation software versions 16.20.08 and earlier. The flaw stems from an out-of-bounds write condition when processing DOE (Design of Experiments) files, which can be exploited to execute arbitrary code. Exploitation requires user interaction—a legitimate user must open a maliciously crafted DOE file. The vulnerability was disclosed in CISA advisory ICSA-24-345-06 Update B on February 3, 2026, adding CVE-2025-6377 to an existing advisory that was initially published December 10, 2024. Rockwell Automation has released version 16.20.09 to address this issue.

Vendor
Rockwell Automation
Product
Arena
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2024-12-10
Original CVE updated
2026-06-23
Advisory published
2024-12-10
Advisory updated
2026-06-23

Who should care

Organizations using Rockwell Automation Arena for discrete event simulation in industrial environments, particularly those exchanging DOE files externally or with supply chain partners. OT security teams and asset owners in manufacturing, logistics, and process industries where Arena models are deployed.

Technical summary

CVE-2025-6377 is an out-of-bounds write vulnerability (CWE-787) in Rockwell Automation Arena's handling of DOE files. The vulnerability allows a threat actor to write beyond allocated memory boundaries, potentially achieving arbitrary code execution. The attack vector is local (AV:L) with high attack complexity (AC:H) and requires user interaction (UI:R)—specifically, a legitimate user must execute a malicious DOE file crafted by the attacker. Despite the local attack vector, the impact is severe with high confidentiality, integrity, and availability impacts (C:H/I:H/A:H). The vulnerability affects Arena versions 16.20.08 and earlier. Rockwell Automation released version 16.20.09 as a fix. Interim mitigations include avoiding untrusted files and using the Control key during file load to suppress VBA execution.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to Rockwell Automation Arena version 16.20.09 or later.
  • Avoid opening untrusted Arena model files, particularly DOE files from unknown sources.
  • Hold the Control key when loading files to prevent VBA file stream execution as a temporary mitigation.
  • Implement Rockwell Automation security best practices for industrial control systems.
  • Apply CISA's Stakeholder-Specific Vulnerability Categorization (SSVC) for environment-specific prioritization.

Evidence notes

CVE published 2024-12-10; advisory updated 2026-02-03 to add CVE-2025-6377 per revision history. CVSS 3.1 score 7.0 (HIGH) with vector AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. Affected product: Rockwell Automation Arena <=16.20.08. CWE-787 (Out-of-bounds Write) identified.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-6377 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-6377

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-6377 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-6377

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-345-06.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-345-06

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.